H-frame hydraulic press

ABSTRACT

A vertically disposed press having two spaced apart vertical legs and also having a horizontal work support bed between the legs which is adjustable vertically so as to support a work piece beneath a hydraulic press carried by the frame. The bed is mounted in cantilever fashion by means of rollers at one end which ride up and down on opposite sides of one of the vertical legs. When the bed has been positioned at the proper elevation, it is easily locked in place to both of the legs for securely supporting the work piece in position. The press also includes a hydraulic cylinder connected by a tension member to one end of the bed and by means of which the bed can be easily and quickly adjusted in a vertical position along the vertical legs.

tates te 1 1 1 1 [54] Ill-FRAME HYDRAULIC PRESS [75] Inventor: DouglasP. Miller, Milwaukee, Wis.

[73] Assignee: Applied Power Inc., Milwaukee,

Wis.

22 Filed: Mar. 25, 1974 [21] Appl. No.: 454,076

Jan.7,1975

[57] ABSTRACT A vertically disposed press having two spaced' apartvertical legs and also having a horizontal work support bed between thelegs which is adjustable vertically so as to support a work piecebeneath a hydraulic press carried by the frame. The bed is mounted incantilever fashion by means of rollers at one end which ride up and downon opposite sides of one of the vertical legs. When the bed has beenpositioned at the proper elevation, it is easily locked in place to bothof the legs for securely supporting the work piece in position. Thepress also includes a hydraulic cylinder connected by a tension memberto one end of the bed and by means of which the bed can be easily andquickly adjusted in a vertical position along the vertical legs.

8 Claims, 5 Drawing Figures SHEET 2 OF 2 PATENIEB JAN 7 I975 1 H-FRAMEHYDRAULIC PRESS BACKGROUND OF THE INVENTION Prior art H-frame hydraulicpresses usually employed pulleys, cables and winches and the like andwhich were connected to both ends of the bed for positioning the latterin the frame. These devices were difficult to operate and adjust andemployed numerous parts which were not only expensive to manufacture,but were difficult to maintain. Furthermore, these prior art pressescould not be quickly adjustable nor did they provide adequate spacing inthe bed for conveniently holding the work piece. or fixtures.

SUMMARY OF THE INVENTION The present invention provides an H-framehydraulic press having two spaced apart vertical supportmembers whichare rigidly secured together at their upper ends and which can support ahydraulic press means for performing work on a work piece that islocated between thevertical members. The press also includes a generallyhorizontal work support bed which extends between the vertical members,the bed including a cantilever beam which is supported by rollers at oneof its ends on one of the vertical supports. The roller support membersecurely embraces opposite sides of the one vertical member and itsrollers engage opposite sides of BRIEF DESCRIPTION OF THE DRAWINGS FIG.1 is a front elevational view of the hydraulic press embodying thepresent invention;

FIG. 2 is a side elevational view of the press shown in FIG. 1;

FIG. 3 is a top view of the press shown in FIG. 1;

FIG. 4 is an enlarged, fragmentary view of one end of the bed shown inFIG. 1, certain parts being shown in section. or broken away for thesake of clarity; and

FIG. 5 is an enlarged, perspective exploded view of the bed and acertain portion of the frame shown in FIG. 1.

DESCRIPTION OF A PREFERRED EMBODIMENT The main frame of the press iscomprised of two spaced apart vertical support members land 2, each ofwhich in turn is comprised of a pair of parallel plates 3 and 4 having aseries of aligned holes 5 therein and along their length. Cross braces 6are welded between the plates 3 and 4 so as to form the rigid verticalsupport. The upper ends of the vertical supports are rigidly securedtogether by a cross brace 7 which is comprised of two channel members 8and 9 arranged on opposite sides of the legs 3 and 4 and welded theretoso as to form a rigid main frame structure. Mounted centrally on thecross brace 7 is a portion of a hydraulic press means 10 by means ofwhich hydraulic force can be imparted to a work piece (not shown)carried between the vertical legs and on the bed to be described.

To the lower end of the vertical legs are rigidly attached twofeetmembers 13, 14 so as to provide a stable base for the press. I

A work piece bed B extends between and across the vertical legs and can.be adjusted to any vertical posi tion so as to support a work piece onwhich work is to be performed by the hydraulic press means 10. Thegenerally horizontal work support bed includes a cantilever beam 20 thatis fabricated from two steel channels 22 and 24 that are rigidly securedtogether by the cross braces 25 welded therebetween. The channels 22 and24 are located on opposite sides of the vertical legs and can slide upand down relative thereto. It will be noted that the space between thechannels 22 and 24 is considerable so as to easily accommodate a workpiece or other jigs or fixtures. The bed also includes a generallyupwardly extending roller support member RS which is comprised of twoplates 30 and 31 that are welded to their channels 22 and 24 of thebeam. As shown in FIG. 5, a brace 33 is also welded between the plates30 and 31 and has a hook 34 welded centrally thereon. It will be notedthat the plates 30 and 31 are located on opposite sides of one of thevertical legs. Two pairs of rollers 36 and 38 are rotatably supportedbetween the plates 30 and 31, one pair of rollers bearing against oneside of one of the legs and the other rollers 38 bearing against theopposite side of the other of said legs. More specifically, the rollers38 are mounted on shaft 37, the ends of which shaft are located inelongated slots 37 in the plates30 and 31. This permits the rollers tobe adjusted in the slot and thus permit accurate leveling of the beam20. Set screws 39 are threadably engaged in the plates 30 and 31 andabut against the shaft 35 to thus provide limit stops for the shaft inits adjusted position.

Thus, the rollers bear against the two legsand support the beam incantilever fashion.

The beam can be rigidly secured at their legs by means of the removablepins 40 and 41 which extend through the holes 43 and 44 in the beam andthe holes are aligned with holes 5 of the legs.

The hydraulically operated cylinder C is fixed by brackets 48 adjacentthe top of the frame and a tension member 50 in the form of a flexiblechain is connected between the rod 51 of the cylinder C and the hook 34of the roller support member RS.

The bed can thus be readily adjusted at one of its ends by means of thecylinder, the rollers acting to absorb the weight of the beam and thusthe bed can be vertically positioned without any binding between theparts. When the beam is located in the proper vertical position, thepins 40 and 41 are inserted through the aligned holes in the beam andlegs thus locking the bed tween said vertical members; said bedincluding a cantilever beam and a roller support member rigidly fixed'to one end of said beam, said roller support member engaging one of saidvertical support members, rollers carried by said roller support memberand for engaging said one of said vertical members and therebysupporting said beam in cantilever fashion, and means for rigidlysecuring said beam to each of said vertical members, a fluid operatedcylinder secured adjacent the top of said press, and a tension memberconnected between said hydraulic cylinder and said bed whereby thelatter can be vertically positioned along said vertical members by saidhydraulic cylinder and rigidly fixed with said vertical members in anyone of a number of positrons.

2. The press set forth in claim 1 further characterized in that saidbeam includes two steel chambers rigidly secured together in spacedapart parallel relationship, and said roller support member includes twospaced apart, upwardly extending plates, and said rollers are rotatablymounted to and between said plates.

3. The press as described in claim 1 further characterized in that saidfluid operated cylinder is secured to said one of said vertical members,and said tension member is a flexible chain; said roller support memberhaving a hook fixed thereon, and said chain is adjustably connected tosaid hook.

4. The press as described in claim 2 further characterized in that saidfluid operated cylinder is secured to said one of said vertical members,and said tension member is a flexible chain; said roller support memberhaving a hook fixed thereon, and said chain is adjustably connected tosaid hook.

5. An H-frame hydraulic press comprising, two spaced apart verticalmembers, an upper brace rigidly fixed adjacent the upper ends ofsaidvertical members and for rigidly securing said members together, meanson said brace for supporting a hydraulic press means for performing workon a work piece locatable between said vertical members, a generallyhorizontal work support bed extending between saidvertical members; saidbed including a cantilever beam and a roller support member rigidlyfixed to one end of said beam, said roller support member embracingopposite sides of one of said vertical members, vertically spaced apartrollers carried by said roller support memberand for engaging oppositesides of said one of said vertical members and thereby supporting saidbeam in cantilever fashion, and removable means for rigidly securingsaid beam to each of said vertical members for supporting a work pieceto be worked on by said hydraulic press means, a fluid operated cylindersecured adjacent the top of said press,

and a tension member connected between said hydrauv terized in that saidfluid operated cylinder is secured to said one of said vertical members,and said tension member is a flexible chain; said roller support'memberhaving a hook fixed thereon, and said chain is adjustably connected tosaid hook.

8. The press as described in claim 6 further characterized in that saidfluid operated cylinder is secured to v said one of said verticalmembers, and said tension member is a flexible chain; said rollersupport member having a hook fixed thereon, and said chain is adjustablyconnected to said hook.

1. An H-frame hydraulic press comprising, two spaced apart verticalmembers, an upper brace rigidly securing said members together at theirupper ends, a generally horizontal work support bed extending betweensaid vertical members; said bed including a cantilever beam and a rollersupport member rigidly fixed to one end of said beam, said rollersupport member engaging one of said vertical Support members, rollerscarried by said roller support member and for engaging said one of saidvertical members and thereby supporting said beam in cantilever fashion,and means for rigidly securing said beam to each of said verticalmembers, a fluid operated cylinder secured adjacent the top of saidpress, and a tension member connected between said hydraulic cylinderand said bed whereby the latter can be vertically positioned along saidvertical members by said hydraulic cylinder and rigidly fixed with saidvertical members in any one of a number of positions.
 2. The press setforth in claim 1 further characterized in that said beam includes twosteel chambers rigidly secured together in spaced apart parallelrelationship, and said roller support member includes two spaced apart,upwardly extending plates, and said rollers are rotatably mounted to andbetween said plates.
 3. The press as described in claim 1 furthercharacterized in that said fluid operated cylinder is secured to saidone of said vertical members, and said tension member is a flexiblechain; said roller support member having a hook fixed thereon, and saidchain is adjustably connected to said hook.
 4. The press as described inclaim 2 further characterized in that said fluid operated cylinder issecured to said one of said vertical members, and said tension member isa flexible chain; said roller support member having a hook fixedthereon, and said chain is adjustably connected to said hook.
 5. AnH-frame hydraulic press comprising, two spaced apart vertical members,an upper brace rigidly fixed adjacent the upper ends of said verticalmembers and for rigidly securing said members together, means on saidbrace for supporting a hydraulic press means for performing work on awork piece locatable between said vertical members, a generallyhorizontal work support bed extending between said vertical members;said bed including a cantilever beam and a roller support member rigidlyfixed to one end of said beam, said roller support member embracingopposite sides of one of said vertical members, vertically spaced apartrollers carried by said roller support member and for engaging oppositesides of said one of said vertical members and thereby supporting saidbeam in cantilever fashion, and removable means for rigidly securingsaid beam to each of said vertical members for supporting a work pieceto be worked on by said hydraulic press means, a fluid operated cylindersecured adjacent the top of said press, and a tension member connectedbetween said hydraulic cylinder and said bed whereby the latter can bevertically positioned along said vertical members by said hydrauliccylinder and rigidly fixed with said vertical members in any one of anumber of vertical positions.
 6. The press set forth in claim 5 furthercharacterized in that said beam includes two steel channels rigidlysecured together in spaced apart parallel relationship, and said rollersupport member includes two spaced apart, upwardly extending plates, andsaid rollers are rotatably mounted to and between said plates.
 7. Thepress as described in claim 5 further characterized in that said fluidoperated cylinder is secured to said one of said vertical members, andsaid tension member is a flexible chain; said roller support memberhaving a hook fixed thereon, and said chain is adjustably connected tosaid hook.
 8. The press as described in claim 6 further characterized inthat said fluid operated cylinder is secured to said one of saidvertical members, and said tension member is a flexible chain; saidroller support member having a hook fixed thereon, and said chain isadjustably connected to said hook.